Evaluation of Septic Tank and Subsurface Wetland for

5-Oct-
2004 SET TWO – NEPA Lab
Tot Fecal
Sample BOD TSS Tot. N NO3-N NH3-N PO4-P Coli. Coli. pH
Method 5210B 2540B n/a 4500E n/a 4500PE n/a 9221E
Mg/l Mg/l mg/l mg/l mg/l mg/l MPN MPN
PS1 - 58 - 0.04 - 10.5 - 1600 7.0
PS1* - 64 - 0.77 - 10.2 - ≥ 1600 7.2
PS2 - 96 - 0.08 - 5.4 - ≥ 1600 7.0
PS3 - 20 - 0.04 - 4.8 - 13 7.0
RT1 - 42 - 1.33 - 13.0 - ≥ 1600 6.8
RT2 - 10 - 0.13 - 6.0 - ≥ 1600 7.0
RT3 - 26 - 1.69 - 9.9 - 140 6.9
* duplicate
2-Nov-
2004 SET THREE
Sample BOD TSS Tot. N NO3-N NH3-N Tot. P Tot. Coli. Fecal Coli. pH
Mg/l mg/l mg/l mg/l mg/l mg/l MPN MPN
PS1 68 75 41.3 0.3 115.0 14.2 920,000 920,000 7.7
PS2 23 16 40.5 0.9 72.0 9.7 240,000 240,000 7.9
PS3 12 19 1.5 0.3 0.3 0.2 1,700 1,700 7.6
RT1 27 25 2.3 0.6 3.4 1.8 2,200,000 2,200,000 7.5
RT1* 12 27 9.5 0.5 3.2 1.3 540,000 540,000 7.6
RT2 6 13 2.8 0.5 4.9 1.4 7,000 7,000 7.5
RT3 12 12 16.8 0.2 0.5 1.4 170 170 7.5
* duplicate
16-Nov-
2004 SET FOUR
Sample BOD TSS Tot. N NO3-N NH3-N Tot. P Tot. Coli. Fecal Coli. pH
Mg/l mg/l mg/l mg/l mg/l mg/l MPN MPN
PS1 72 83 30.9 0.2 114.0 20.7 7,500,000 7,500,000 7.7
PS2 n/a 22 30.1 0.6 73.0 12.1 3,500,000 3,500,000 7.7
PS3 n/a 11 2.6 1.0 0.2 0.3 27 17 7.7
RT1 51 24 40.9 0.7 4.0 3.3 940,000 940,000 7.1
RT2 9 6 7.3 0.3 3.5 1.0 130,000 130,000 7.5
RT2* n/a 3 7.1 0.7 3.5 0.8 130,000 130,000 7.4
RT3 14 12 2.8 1.0 0.0 0.5 34 13 7.4
* duplicate
63